Means for setting eyelets.



W. A. BERNARD. MEANS FOR SETTING EYELETS.

APPLICATION FILED JUNE 10, 1913.

Patented Aug. 4, 1914.

INVENTOR" Maw IVIITNESSES:

AL F Qr LW A TTOANE).

TED srarns PATENT FFIC it WILLIAM A. BERNARD, 0F HAVEN, CONNECTICUT, ASSIGNOB. TO THE WILLIAM SCHOLLHORN COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

MEANS FOR SETTING EYELETS.

To all whom it may concern:

Be it known-that I, WILLIAM A. BERNARD, a citizen of the'United States, residing in New Haven, county of New Haven, and State of Connecticut, have invented certain new and useful Improvements in Means, for Setting Eyelets, of which the following is a full, clear, and exact description.

My invention relates to improved means for setting eyelets in paper, cardboard or other material, and the primary object of the invention is to provide a commercially practical device wherein the whole operation of setting the eyelet, including the punching of the hole, as well as the Hangingor turning over of the eyelet in the hole, may be effected by a single closing or approaching movement of a punch and die relatively to each other. -It is merely necessary to set the eyelet on the punch and place the cardboard or other material between the punch and the die, and then bring. the punch and die together. On separating the punch and die the material with the eyelet properly set therein may be immediately and easily removed.

It has heretofore beenproposed to punch a hole in paper, leather or like material and set an eyelet in the hole at the same operation. However, in so far as I am aware, the various means adopted for this purpose have never operated successfully. Among, other things, it has been proposed to use an eyelet having-the unflanged end thereof slightly curved or flared in an outward direction. with the idea that this outwardly flared end of the eyelet will be spread outwardly to complete the flange by contact with an annular concave seat around the die opening against which the aforesaid end of the eyelet is forced by a shoulder on the punch. It has been found, however, that in practice the slightly curved end of the eyelet continues to hug the body of the punch and that the annular concave seat around the die opening will jam the end of the eyelet in an axial direction instead of spreading it out into a flange of proper form.

By my invention, I not only produce an eyelet setting means which is fully operative and very effective and reliable, but I also avoid the necessity of using an eyelet of special shape.

My improved punch and die are adapted Specification of Letters Patent.

Application filed June 10, 1913. Serial No. 772,830.

Patented Aug. 4, 1914!.

to act on an eyelet of the usual commercial form having one end flanged and the other absolutely plain.

The construction of the punch and die is such that the plain end of the eyelet will always be turned over or flanged in such a manner as to hold firmly and securely the material surrounding the eyelet body.

To these and other ends, the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawing, Figure 1 is a side elevation of a punch and die embodying my invention showing them separated for the interposition of the material to be eyeleted, Fig. 2 is a section on line 2-2 of Fig. 1, Fig. 3 is an enlarged plan view of the die and punch arranged side by side, Fig. 4 is a longitudinal section of the punch and die showing an intermediate stage in the operation of setting 'an eyelet, and Fig. 5 is a. similar view showing the final stage of the operation.

Referring to the drawing, my improvements are adapted to be carried out by means of a punch 10 and die 11 of novel form. The punch and die are carried by suitable relatively movable elements 10, 11, as iudicated by the dotted lines in Fig. 1,which may be constituted, for example. by parallel jaws of a hand tool of the plier or lever handle type. In the form shown, the punch 10 is provided with an integral solid shank 12 by which it may be secured in its carrying element, and the die 11 is provided with a hollow shank 13 for the same purpose. These features, however, are not material.

The punch 10 comprises a body 14.- which is of generally cylindrical form. and a shoulder or flange 15 extending laterally from the base of the punch body. In accordance with my invention the body 14 is provided on its curved outer surface with a plurality of longitudinally directed flutes or corrugations 16. In the example shown, these flutes or corrugations are substantially U-shaped in cross-section, but they might be V-shaped or of some other form. The top of the punch body is preferably inclined, as shown at 17, in order to provide for a shearing cut. The upper surface of the shoulder or flange 15 surrounding the base of the punch body is provided with a Concave annular recess 18 adapted to receive the flange of an eyelet l9 surrounding and centered on the punch, as indicated by the dotted lines in Fig. 1.

The die 11 is provided with a die opening 20 (Fig. 3) to receive the punch body 14. Extending around the opening 20 is a shoulder or flange 21 corresponding substantially to the shoulder or flange 15 on the punch. Opposing the annular seat 18 on the punch is a generally similar seat 22 on the face of the shoulder 21 around the die opening.

The die opening 20 corresponds to the contour of the punch, and to this end, that portion of the die which is located at the inner edge of the seat 22 is provided With a plurality of inwardly extending teeth 23 which are adapted to fit in the flutes or corrugations 16 of the punch body when the punch The operation of setting an eyelet is sub I stantially as follows: The eyelet 19 is set over the punch 10 so that the body of the eyelet will be centered on the phnch body 14 while ,the flange of the eyelet will rest in the seat 18. Theplain end of the eyelet will be uppermost. The. sheet or sheets of material to be eyleted are then interposed between the upper end of the punch and the lower surface of the die, as shown in Fig.

. 1. The punch body is sufficiently long to extend upward beyond the upper edge of the eyelet. "When the punch and die are brought together the interposed material is forced against the die and held against the die while the punch passes through the same, thereby cutting a hole having a fluted or corrugated edge. teeth 23 and shoulder 21 of the die force the material which has been thus perforated over the eyelet 19, as shown in Fig. 4, so that the material will be properly placed around the body of the eyelet. the punch and die continue to more toward each other. the teeth 23 of the die in moving along in the recesses or flutes 16 of the punch will engage at their outer surfaces with the upper end of the eyelet, as shown in Fig. 4. This starts the flanging or turning over of the upper end of the eyelet, and as the punch and die continue to move toward each other the outer surfaces of the tceth 23 deflect the edge of the eyelet the seat 22 so that it finally conforms to the same, as shown in Fig. 5. In this man-. ner the upper plain end of the eyelet is turned over or flanged in an-efi'ective manner so as to confine the material firmly be-' At the same time the Then, as

tween the two flanges of the eyelet. The turning over of the plain end of the eyelet takes place substantially simultaneously with the perforation of the paper or other material and the forcing of the perforated material over the eyelet. lVhen the parts have reached the position shown in Fig. 5,

the punch and die may be drawn apart andthe material, with the eyelet therein, may be easily removed. Hence it will be understood that by my invention the perforation of the material as well as the setting of the eyelet in the hole or perforation may be effected by a single approaching movement of the punch and die relatively to each other.

One of the most important features of my invention resides in the fact that the die is provided with portions (23) which extend into the body of the punch. The tendency of the eyelet is always to hug the punch closely and it is only by providing the teeth 23 or their equivalents, extending into the lines of the punch, that I am enabled todeflect the plain end of the eyelet from the punch and obtain a proper flanging thereof.

The unch is formed to pass through and support an eyelet with spaces between the Of course, it will be understood that the form of my invention shown in the drawing is only one embodiment of my inventive idea.

1 In referring to a fluted -punch and die, I use the term in a broad sense withoutlimiting myself to any particular form of the flutes or corrugations. Various modifications in this and other respects may be adopted within the scope of the invention as defined in the claims.

What I claim is:

1. The combination with a punch having recesses, of a die having an eyelet-receiving seat, and provided with teeth defining the die opening and adapted to extend within the recesses of the punch; substantially as described.

2. The combination with a punch having v receiving seat and inwardly projecting teeth shaped to fit closely within the flutes tially as described.

ti-The combination with. a fluted punch having a shoulder with an eyelet-receiving seat, of a die havin teeth around the die opening extending into the flutes of the punch and provided with a shoulder having a'seat facing the seat on the punch; substan-v tiallv as described.

7. The combination with a punch and die,-

' of meansincluding flanging projections on the die for turning over orflanging the straight plain end of acommercial eyelet substantially simultaneously with the perforation of 'the material to bev eyeleted; substantially as, described.

8. The combination with a punch and die, of means for turning over or flanging the straight, plain end of a commercial eyelet,

including peripheral projections on one of said parts, the other part being provided with recesses into which said projections enter; substantially as described.

9. The combination with a punch and die, of means for turning over or flanging the straight, plain end of a commercial eyelet,

a shoulder with an annular eyeletreceiving seat, of a die having teeth extend ing into the flutes of the punch; substanincluding rojections on one of said parts fitting within recesses of the other part, both of said parts having flange seats and said projections being formed and arranged to deflect the end of the eyelet into one of said seats; substantially as described.

10. A punch formed to pass through and support an eyelet with spaces between the outer periphery of such punch and the inner periphery of such eyelet, in combination.

with a die having means formed and BI.

:ranged' to enter such spaces and deflect or flange the end of the eyelet; substantially as described. I 11. An eyeleting punch comprising a .body portion or punch proper, and a shoul der extending laterally from said body por- 'tion and provided with an eyelet-receiving seat, said body portion having longitudinal flutes, and the minimum diameter of said seat being equal to the maximum diameter of said bodyportion; substantially as described. V

'12. An eyeleting die having an annular flange seat and provided withinwardly projecting teeth defining the die opening; substantially as described. I e

13. An eyeleting die having an annular flange seat and provided with inwardly projecting teeth defining the die opening, said teeth having surfaces merging into said seat.

In witness whereof, I have hereunto set my hand on the 9th day of June, 1913.

WILLIAM A. BERNARD. Witnesses:

HENRY E. RocKwnLL, M, OLIVE WILLIAMs. 

